I literally can't even type phone numbers into Skype on my iPhone without a massive input delay that actually makes the digits appear all at once, with their to

I literally can't even type phone numbers into Skype on my iPhone without a massive input delay that actually makes the digits appear all at once, with their tones coming out like a musical chord. In the 21st century, this is unacceptable. The app is so clunky I loathe using it but it's unfortunately still a good (the best?) solution for dialing landlines and mobile phones abroad for extended periods of time.